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Can you pick the scientific things from their definition?
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Correctly selected answers will show up in green
Source: Quick Reference Glossary
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The lowest theoretical temperature
A compound that yields hydrogen ions (H+) when in aqueous solution
An element with more than one natural form
A substance composed of two or more metals, or of a metal or metals with a nonmetal, intimately mixed, as by fusion or electrodeposition
A compound that yields hydroxide (OH- ) ions when in aqueous solution
The temperature at which a liquid turns to a vapour
The basic element in all organic compounds
A substance that reduces the activation energy of a reaction
The smallest independent part of an organism
A substance containing more than one element
Heat or electricity transfer through molecular interaction
Heat transfer through the movement of a fluid
The mass per unit volume in a substance
Movement of a fluid from an area of higher concentration to an area of lower concentration
A negatively charged atomic particle
An ion solution that is an electrical conductor
A substance composed of atoms all with the same atomic number
The change of state of a substance from a liquid to a gas
Splitting the nucleus of an atom into smaller units
The interaction between surfaces
The attraction that all bodies have for one another
Any of the elements forming group 7 of the periodic table
Atom with an unbalanced electrical charge (caused by a gain or loss in electrons)
Chemical compound with the same composition but different shapes
Each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei
The work done by a force of one newton acting on an object to move it through a distance of one meter in the direction the force is applied
The amount of energy required to change a solid to a liquid or liquid to a gas
The visible part of the electromagnetic spectrum
The quantity of matter in a body
A group of atoms bonded together
The product of mass times velocity
A particle with zero charge forming part of an atomic nuclei
An element with zero valency
The part of an atom containing the protons and neutrons
An allotrope of oxygen that blocks ultra-violet radiation
The conversion of water and carbon-dioxide by plants into glucose and oxygen
A particle representing a quantum of light or other electromagnetic radiation
The amount of work done per second
A positively charged particle forming part of atomic nuclei
A fundamental particle, incapable of independent existence, that combines to form particles such as protons and neutrons
Transfer of heat between bodies without a change in the temperature of the intervening medium
The opposition to current flow in a conductor
The rate of change of distance with respect to time
The measure of the force acting on a body
The heat one body is when compared to another
The number of unpaired electrons in an atom's outermost shell
A quantity that is determined by its magnitude and direction
The internal friction of a fluid
The gravitational force exerted on a mass
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Glossary: Science (click) Quiz
Created May 3, 2012 in
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May 3rd, 2012 at 07:03 GMT
Comments and suggestions always appreciated.
May 3rd, 2012 at 12:14 GMT
I think there might be a problem with your definition for photon. If one were to get that before the definition for quark, they could easily be confused. Also, though not an option, your definition for alloy could easily be a definition for a salt, so you may want to tighten it up a bit.
May 3rd, 2012 at 15:58 GMT
@crazylegs: photon has been tweaked, and I agree that although salt is not an option it could benefit from a makeover. Thanx and appreciated.
May 4th, 2012 at 08:05 GMT
Ozone is an allotrope, not an isotope, of oxygen.
May 4th, 2012 at 15:35 GMT
May 5th, 2012 at 22:59 GMT
Halogens are not all gases; the rate of change of distance with respect to time is speed, velocity is the rate of change of displacement; your definition for base is really the same as the one for alkali; Ions are also formed by loss of elections. not too sure about the valence definition either
May 6th, 2012 at 14:13 GMT
@ahh: I have referenced, tweaked, amended, had a small chocolate bar and double checked. Hope it improves things. Thanx for your constructive comment.
May 12th, 2012 at 17:59 GMT
A good quiz, but a couple of gripes about definitions:
Isotopes do differ in number of neutrons, but even the "normal" form is an isotope too. A lot of elements have multiple natural isotopes. I would suggest changing to "isotopes" and a clue like "forms of an element that differ in number of neutrons"
Diffusion isn't quite random, since it refers to movement of a substance over a concentration gradient (from more concentrated to less concentrated, though it is driven by random motion of molecules). Brownian motion would be a better answer for the definition as written.
The definition for temperature has a typo.
May 12th, 2012 at 22:27 GMT
shockingly imprecise definitions all over the place. don't even know where to begin.
May 13th, 2012 at 13:50 GMT
@Pyrophorus: thanx for your concrete advice. Initially I took all of the definitions from the same source and some it would appear are more precise than others, but we seem to be getting there (albeit slowly)
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